dr.ir. M. Mehr

Postdoc
Electronic Components, Technology and Materials (ECTM), Department of Microelectronics

PhD thesis (Nov 2015): Organic Materials Degradation in Solid State Lighting Applications
Promotor: Kouchi Zhang

Projects history

Material Degradation in Solid State Lightening Applications

  1. Degradation of optical materials in solid-state lighting systems
    M. Yazdan Mehr; A. Bahrami; W.D. van Driel; X.J. Fan; J. L. Davis; Kouchi Zhang;
    International Materials Reviews,
    2019.

  2. Spark plasma sintering of Stellite®-6 superalloy
    M. Kiani Khouzani; A. Bahrami; M. Yazdan Mehr;
    Journal of Alloys and Compounds,
    Volume 782, pp. 461-468, 2019.

  3. Root cause analysis of surface cracks in heavy steel plates during the hot rolling process
    Bahrami, A., Khouzani, M. K., Mokhtari, S. A., Zareh, S. & Mehr, M. Y.;
    Metals,
    2019. DOI: https://doi.org/10.3390/met9070801

  4. A review on discoloration and high accelerated testing of optical materials in LED based-products
    M. Yazdan Mehr; M.R. Toroghinejad; F. Karimzadeh; W.D. van Driel and Kouchi Zhang;
    Microelectronics Reliability,
    Volume 81, pp. 136-142, 2018.

  5. Failure of AISI 304H stainless steel elbows in a heat exchanger
    A. Bahrami; S. H. Mousavi Anijdan; P. Taheri; M. Yazdan Mehr;
    Engineering Failure Analysis,
    Volume 90, pp. 397-403, 2018.

  6. Microstructure and mechanical properties of spark plasma sintered nanocrystalline Ni3Al-xB (0.0
    Mohammadnejad, A., Bahrami, A., Sajadi, M., Karimi, P., Fozveh, H. R. & Mehr, M. Y.;
    Materials Today Communications,
    2018. DOI: https://doi.org/10.1016/j.mtcomm.2018.09.002

  7. Reliability and Lifetime Assessment of Optical Materials in LED-Based Products
    Maryam Yazdan Mehr; Willem Dirk van Driel; Kouchi Zhang;
    In Solid State Lighting Reliability Part 2,
    Springer, 2018.

  8. Effects of Graphene Monolayer Coating on the Optical Performance of Remote Phosphors
    Maryam Yazdan Mehr; S. Vollebregt; W. D. van Driel; Kouchi Zhang;
    Journal of Electronic Materials,
    Volume 46, Issue 10, pp. 5866--5872, 2017. DOI: 10.1007/s11664-017-5592-8
    Keywords: ... graphene, Light-emitting diode, reliability, remote phosphor.

  9. Toward Solving Multichannel RF-SoC Integration Issues Through Digital Fractional Division
    S. A. R. Ahmadi Mehr; M. Tohidian; R. B. Staszewski;
    IEEE Transactions on Very Large Scale Integration (VLSI) Systems,
    Volume 24, Issue 3, pp. 1071-1082, March 2016. DOI: 10.1109/TVLSI.2015.2436979
    Keywords: ... frequency dividers;system-on-chip;LC-tank oscillator;RF system on chips;digital fractional divider;frequency divider;frequency planning technique;high-swing class-C oscillator;integer harmonic frequency relationship;multichannel RF-SoC integration;phase rotator;Couplings;Frequency conversion;Frequency modulation;Harmonic analysis;Oscillators;Radio frequency;Substrates;Digital fractional divider;RF-SoC;digitally controlled oscillator (DCO);frequency pulling;injection locking;multi-core radio;system on chip (SoC);system on chip (SoC)..

  10. Degradation of Microcellular PET Reflective Materials Used in LED-based Products
    Guangjun Lu; W.D. van Driel; Xuejun Fan; M. Yazdan Mehr; Jiajie Fan; K.M.B. Jansen; Kouchi Zhang;
    Optical Materials,
    Volume 49, pp. 79-84, 2015.

  11. Color shift investigations for LED secondary optical designs: Comparison between BPA-PC and PMMA
    Guangjun Lu; M. Yazdan Mehr; W.D. van Driel; Xuejun Fan; Jiajie Fan; K.M.B. Jansen; Kouchi Zhang;
    Optical Materials,
    Volume 45, pp. 37-41, 2015.

  12. Organic Materials Degradation in Solid State Lighting Applications
    Maryam Yazdan Mehr;
    PhD thesis, Delft University of Technology, 2015.
    document

  13. Design of RF Oscillators for Wireless Digital Transmitters
    S.A.R. Ahmadi Mehr;
    PhD thesis, Delft University of Technology, http://doi.org/10.4233/uuid:f1b09f61-d1ea-4c17-b7a7-0e3e353d41b7, 09 2015. Promotor: R.B. Staszewski.

  14. Surface aspects of discolouration in Bisphenol A Polycarbonate (BPA-PC), used as lens in LED-based products
    Maryam Yazdan Mehr; W. D. van Driel; H. Udono; Kouchi Zhang;
    Optical Materials,
    Volume 37, pp. 155-159, 2014.

  15. Lifetime assessment of Bisphenol-A Polycarbonate (BPA-PC) plastic lens, used in LED-based products
    Maryam Yazdan Mehr; van Driel, WD; Jansen, KMB; Deeben, P; Kouchi Zhang;
    Microelectronics Reliability,
    Volume 54, Issue 1, pp. 138-142, 2014.

  16. Reliability and optical properties of LED lens plates under high temperature stress
    Maryam Yazdan Mehr; van Driel, WD; Koh, SW; Kouchi Zhang;
    Microelectronics Reliability,
    2014.

  17. Accelerated life time testing and optical degradation of remote phosphor plates
    Maryam Yazdan Mehr; van Driel, WD; Kouchi Zhang;
    Microelectronics Reliability,
    Volume 54, Issue 8, pp. 1544-1548, 2014.

  18. Reliability of LED-based Products is a Matter of Balancing Temperatures
    Maryam Yazdan Mehr; W.D. van Driel; Kouchi Zhang;
    In Therminic Conference,
    2014.

  19. High Accelerated Optical Remote Phosphor Aging Studies for LED Luminaire Applications
    W. D. v. Driel; Maryam Yazdan Mehr; Kouchi Zhang;
    In 11th China SSL conference,
    2014.

  20. Colour shift in remote phosphor based LED products
    Maryam Yazdan Mehr; Driel, WD van; Kouchi Zhang;
    In Proceedings - 64th Electronic Components and Technology Conference,
    pp. 1477-1481, 2014.

  21. Reliability and accelerated test methods for plastic materials in LED-based products
    Maryam Yazdan Mehr; van Driel, WD; Kouchi Zhang;
    In Proceedings - 15th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems,
    pp. 1-5, 2014.

  22. Investigation of color shift of LEDs-based lighting products
    Koh, SW; Huaiyu Ye; Maryam Yazdan Mehr; Jia Wei; van Driel, WD; Zhao, LB; Kouchi Zhang;
    In Proceedings - 15th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems,
    pp. 1-5, 2014.

  23. Photodegradation of bisphenol A polycarbonate under blue light radiation and its effect on optical properties
    Maryam Yazdan Mehr; W. D. van Driel; K. M. B. Jansen; P. Deeben; M. Boutelje; Kouchi Zhang;
    Optical Materials,
    Volume 35, pp. 504-508, 2013.

  24. Dual-core high-swing class-C oscillator with ultra-low phase noise
    M. Tohidian; S. A. Reza Ahmadi Mehr; R. B. Staszewski;
    In 2013 IEEE Radio Frequency Integrated Circuits Symposium (RFIC),
    pp. 243-246, June 2013.

  25. Prime microlens arrays for Hartmann-Shack sensors: an economical fabrication technology
    D.W. de Lima Monteiro; O. Akhzar Mehr; G.V. Vdovin;
    In U Wittrock (Ed.), Adaptive optics for industry and medicine: Proceedings of the 4th international workshop,
    Springer, pp. 197-206, 2005.

  26. Arrays of spherical micromirrors and molded microlenses fabricated with bulk Si micromachining
    G.V. Vdovin; O. Akhzar Mehr; P.M. Sarro; D.W. de Lima Monteiro; M.Y. Loktev;
    In Proc. SPIE: MEMS/MOEMS: Advances Photonic Communications, Sensing, Metrology, Packaging and Assembly,
    Brugge, Belgium, pp. 107-111, Oct. 2002.

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Last updated: 26 Dec 2018

Maryam Yazdan Mehr